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发明名称
发光二极体驱动电路及其保护方法;LED DRIVING CIRCUIT AND PROTECTION METHOD THEREOF
摘要
一种发光二极体驱动电路,包括电压选择器、保护电路及控制电路。电压选择器分别从多个发光二极体串接收多个回授电压并从该些回授电压中选出最低回授电压。保护电路耦接电压选择器与该些发光二极体串。控制电路耦接电压选择器与保护电路,且接收最低回授电压与参考电压。当最低回授电压与参考电压之间的差値小于预设値时,控制电路提供短路保护控制讯号至保护电路,以致能保护电路之短路侦测单元。
申请公布号
TW201427486
申请公布日期
2014.07.01
申请号
TW101149063
申请日期
2012.12.21
申请人
力智电子股份有限公司
发明人
吕文福;陈威蓉
分类号
H05B37/02(2006.01);H05B33/08(2006.01)
主分类号
H05B37/02(2006.01)
代理机构
代理人
李贞仪
主权项
地址
UPI SEMICONDUCTOR CORP. 新竹县竹北市台元一街5号9楼之1 TW
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